Bottle cap seal

ABSTRACT

A cap-seal unit to be mounted on the neck of a bottle, which comprises a seal member adapted to be disposed on the neck of a bottle and having circular ribs on its surface in order to retain the seal member. A truncated cone strip is equipped with a progressively weakened wall, until reaching a skirt, for holding together the cap-seal unit. A wall is disposed concentric to the skirt, said skirt being arranged partly inside of the neck of the bottle. A flange extends from the lateral surface of the cap-seal unit, so that upon pulling the weakened wall and seal is separated from the cap.

Sugasaga [4 1 May 7,1974

[ BOTTLE CAP SEAL 22 Filed: May 23,1972

21 Appl. No.: 256,104

52 us. Cl. 215/42, 215/46 1,188,075 4/1970 Great Britain 215/47 PrimaryExaminer-I-Ierbert F. Ross [57] ABSTRACT A cap-seal unit to be mountedon the neck of a bottle, which comprises a seal member adapted to bedisposed on the neck of a bottle and having circular ribs on its/surfacein order to retain the seal member. A truncated cone strip is equippedwith a progressively weakened wall, until reaching a skirt, for holdingtogether the cap-seal unit. A wall is disposed concentric to the skirt,said skirt being arranged partly inside of the neck of the bottle. Aflange extends from the lateral surface of the cap-seal unit, so thatupon pulling the weakened wall and seal is separated from the cap.

2 Claims, 2 Drawing Figures PATETEU MAY 7 I974 FIG.

7 /1/ I I I I I I I I I I I I I l 1 BOTTLE CAP SEAL The presentinvention relates to a bottle cap-seal which is received by andremovable from the neck or throat of a bottle.

It is one object of the present invention to provide a bottle-cap seal,in particular a cap-seal, which remains outside of the neck or throat ofthe bottle and is held by circular ribs on the inner surface of the neckof the bottle, the cap being held together by a truncated cone stripwith a progressively weakened wall until the skirt, presented by astopper is reached.

With these and other objects in view, which will become apparent in thedetailed description, the present invention will be clearly understoodin connection with the accompanying drawings, in which:

FIG. 1 is an elevation of the cap-seal unit, which comprises an upperpart in its upper range, which upper part constitutes the cap itselfincluding a plurality of ribs which are arranged parallel to each otherand equidistant; and

FIG. 2 is a section of the cap-seal unit which includes a cap cover andperipheral zone being equipped with ribs which are disposed on its innersurface.

Referring now to the drawing, the cap-seal, designed in accordance withthe present invention, comprises an upper part in its upper range whichconstitutes the cap itself and which has a plurality of ribs 4-which aredisposed parallel to each other, as well as equidistant.

The lower area, which constitutes a separable seal, has a flange 5 whichis adapted for the detachment operation.

As clearly shown in FIG. 2, a section of the cap-seal unit comprisesparts 1 and 2 respectively, part 1 constituting the top of the cap-sealand part 2 constituting the peripheral portion of the cap-seal unit. Thecap part 1 and the peripheral part 2 are joined by a substantiallyfrustoconical peripheral zone 3 which is extremely weak and made ofthinner material. Inside of the peripheral portion 2 are providedannular ribs 6 in such manner, that the top part 1 has a skirt 7 whichfits into the neck or throat of the bottle.

The seal-cap operates in the following manner:

On the neck of the bottle, under a certain degree of pressure, thecylindrical skirt 7 is caused to enter through the mouth of thecontainer at the same time as the neck itself is held between the skirt7 and the area of the seal tube, the ribs 6 of which having wedge shapedextensions, bring about the correct retention of the cap-seal unit atthe neck of the bottle.

In order to remove the cap-seal unit, it will suffice to pull on flange5 (FIG. 1) which will produce a tear precisely through the area havingthe least thickness and therefore the detachment of the entire portion2.

The lower end lb of the cylindrical outer part 1a radially inwardlyoverlaps the connected smaller upper end 3a of the truncated cone 3.

The ribs 4 extend into the upper portion of the truncated cone 3 inV-shaped points 4a.

An upper circular rib 6a is adjacent the truncated cone 3 and has aradially inwardly extending surface 6b,.and the other rib 6a constitutesan isosceles triangle.

While I have disclosed one embodiment of the present invention, it is tobe understood that this embodiment is given by example only and not in alimiting sense.

I claim:

1. A cap-seal unit to be mounted on the neck of a bottle, comprising acylindrical separable seal portion adapted to be disposed on the neck ofa bottle and having circular ribs on its inner surface in order toretain said seal portion, and upper cylindrical cap portion, asubstantially frustoconical strip having a progressively weakened wall,weakening in a direction toward said cap portion, having a narrowmostweakest portion at its uppermost part connected to said cap portion andholding together said cap portion and said seal portion, a cylindricalskirt connected to said cap portion as well as disposed concentric toand radially inwardly spaced from said cap portion and said seal portionand said circular ribs of the latter, said skirt being adapted to enterinside of the neck of the bottle, and a flange means extending from theoutermost lateral surface of said separable seal portion for, uponpulling said flange means, separating said weakened wall including saidseal portion from said cap portion, said upper cap portion includes adisk shaped top which is connected to said skirt and a cylindrical partjoined to said frustoconical strip, said cylindrical part having adiameter smaller than that of said seal portion, said cylindrical parthas a plurality of straight axially extending ribs on its outer surfaceforming grooves therebetween and extending to V-shaped points at saidfrustoconical strip, said V- shaped points providing the weakened pointof tearing between said cap portion and said frustoconical strip, one ofsaid circular ribs is adjacent said frustoconical strip and has a radialdirected top surface thereat, and another of said circular ribs isdisposed spaced from one of said circular ribs and constitutes anisosceles triangle shape.

2. The cap-seal unit, as set forth in claim 1, wherein ping radiallyinwardly the former.

1. A cap-seal unit to be mounted on the neck of a bottle, comprising acylindrical separable seal portion adapted to be disposed on the neck ofa bottle and having circular ribs on its inner surface in order toretain said seal portion, and upper cylindrical cap portion, asubstantially frustoconical strip having a progressively weakened wall,weakening in a direction toward said cap portion, having a narrowmostweakest portion at its uppermost part connected to said cap portion andholding together said cap portion and said seal portion, a cylindricalskirt connected to said cap portion as well as disposed concentric toand radially inwardly spaced from said cap portion and said seal portionand said circular ribs of the latter, said skirt being adapted to enterinside of the neck of the bottle, and a flange means extending from theoutermost lateral surface of said separable seal portion for, uponpulling said flange means, separating said weakened wall including saidseal portion from said cap portion, said upper cap portion includes adisk shaped top which is connected to said skirt and a cylindrical partjoined to said frustoconical strip, said cylindrical part having adiameter smaller than that of said seal portion, said cylindrical parthas a plurality of straight axially extending ribs on its outer surfaceforming grooves therebetween and extending to V-shaped points at saidfrustoconical strip, said Vshaped points providing the weakened point oftearing between said cap portion and said frustoconical strip, one ofsaid circular ribs is adjacent said frustoconical strip and has a radialdirected top surface thereat, and another of said circular ribs isdisposed spaced from one of said circular ribs and constitutes anisosceles triangle shape.
 2. The cap-seal unit, as set forth in claim 1,wherein said frustoconical strip at its upper end is connected to alower end of said upper part, the latter overlapping radially inwardlythe former.